US7817236B2ExpiredUtilityA1
Liquid crystal display and method of manufacturing the same
Est. expiryNov 29, 2025(expired)· nominal 20-yr term from priority
G02F 1/1341G02F 2201/50G02F 1/13415G02F 1/1339
78
PatentIndex Score
5
Cited by
5
References
28
Claims
Abstract
A display substrate includes a transparent plate and a liquid crystal dispersion adjuster. The display substrate includes a display area and a peripheral area surrounding the display area. The liquid crystal dispersion adjuster is formed in the peripheral area to modify the movement of the liquid crystal. The dispersion adjuster includes enhancing parts and a suppression part. The enhancing parts increase the dispersion of the liquid crystal, and the suppression part reduces the dispersion of the liquid crystal, thereby reducing non-filling area of the liquid crystal and the contamination of a seal-line.
Claims
exact text as granted — not AI-modified1. A display substrate comprising:
a transparent plate having a display area and a peripheral area surrounding the display area; and
a liquid crystal dispersion adjuster formed in the peripheral area to modify the movement of liquid crystal,
wherein the liquid crystal dispersion adjuster includes an enhancing part to increase the movement of a liquid crystal in the peripheral area and a suppression part connected to the end of the enhancing part to reduce the movement of the liquid crystal in the peripheral area.
2. The display substrate of claim 1 , wherein the enhancing part comprises a plurality of enhancing portions, with each enhancing portion extending outward to a periphery of the transparent plate and spaced apart from adjacent enhancing portions at a pre-determined distance.
3. The display substrate of claim 2 , wherein each of the plurality of enhancing portions is zigzag shaped.
4. The display substrate of claim 2 , wherein each of the plurality of enhancing portions is curved.
5. The display substrate of claim 2 , wherein the pre-determined distance ranges from approximately 20 μm to approximately 80 μm.
6. The display substrate of claim 2 , wherein the enhancing portions have a thickness approximately 1.2 μm to approximately 1.3 μm.
7. The display substrate of claim 1 , wherein the suppression part crosses the enhancing part.
8. The display substrate of claim 7 , wherein the suppression part is approximately perpendicular to the enhancing part.
9. The display substrate of claim 1 , wherein the enhancing part has a first thickness and the suppression part has a second thickness, wherein the second thickness is thicker than the first thickness.
10. The display substrate of claim 1 , wherein the liquid crystal dispersion adjuster comprises a photoresist.
11. The display substrate of claim 1 , further comprising a black matrix disposed between the transparent plate and the liquid crystal dispersion adjuster.
12. The display substrate of claim 1 , further comprising a seal-line formed on the black matrix and separated from the liquid crystal dispersion adjuster by a pre-determined distance.
13. The display substrate of claim 12 , the seal-line is separated from the liquid crystal dispersion adjuster by approximately 0.1 mm to approximately 0.3 mm.
14. The display substrate of claim 1 , further comprising a color filter in the display area.
15. The display substrate of claim 14 , further comprising a common electrode over the color filter, wherein the common electrode comprises a transparent conductor.
16. The display substrate of claim 15 , further comprising an overcoat between the color filter and the common electrode.
17. A display panel, comprising:
a first substrate having a plurality of thin film transistors;
a second substrate facing with the first substrate;
a liquid crystal layer between the first and second substrates; and,
a seal-line along a periphery of and between the first substrate and the second substrate to enclose the liquid crystal layer,
wherein the second substrate comprises a transparent plate having a display area and a peripheral area surrounding the display area, and a liquid crystal dispersion adjuster formed in the peripheral area to modify the movement of the liquid crystal, the liquid crystal dispersion adjuster includes a plurality of enhancing parts to increase the movement of the liquid crystal and a suppression part connected to ends of the enhancing parts to reduce the movement of the liquid crystal.
18. The display panel of claim 17 , wherein the suppression part has the second thickness, and the second thickness is about 60% to 100% of a cell gap between the first substrate and the second substrate.
19. The display panel of claim 17 , wherein the enhancing part has the first thickness, and the first thickness is about 20% to 60% of a cell gap between the first substrate and the second substrate.
20. The display panel of claim 17 , wherein the enhancing part has the first thickness, and the first thickness is about 20% to 80% of the second thickness.
21. The display panel of claim 17 , wherein the seal-line is along a periphery of the peripheral area and is separated from the liquid crystal dispersion adjuster by a pre-determined distance.
22. The display panel of claim 21 , wherein the seal-line is separated from the liquid crystal dispersion adjuster by approximately 0.1 mm to approximately 0.3 mm.
23. The display panel of claim 17 , further comprising a spacer to maintain a gap between the first and second substrates.
24. The display panel of claim 23 , wherein the spacer comprises substantially the same material as the liquid crystal dispersion adjuster.
25. The display panel of claim 17 , wherein the second substrate further comprises a black matrix between the transparent plate and the liquid crystal dispersion adjuster.
26. The display panel of claim 17 , wherein the second substrate further comprises a color filter in the display area.
27. The display panel of claim 17 , wherein the first substrate further comprises a black matrix between the transparent plate and the liquid crystal dispersion adjuster.
28. The display panel of claim 17 , wherein the first substrate further comprises a color filter in the display area.Cited by (0)
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